Flag of the Soviet Union - Wikipedia

Map of Europe (from Wikipedia, with flags), but if the Soviet Union kept Belostok Oblast to itself after World War II and it stayed as a part of Belarus after 1991.

Flags of the federal subjects of Russia - Wikiwand

Flag of the Karakalpak Autonomous Soviet Socialist Republic - Wikiwand

Flag of Russia - Wikipedia

Tsardom of Russia Flag, Russia flag, Oryol

Nostalgia for the Soviet Union - Wikipedia

Poland - Hearts of Iron 4 Wiki

Soviet Union (USSR)

File:Flag of Krasnodar (Krasnodar krai) (2006).png - Wikimedia Commons

Flag of the Soviet Union - Wikipedia

File:Flag of the Russian Democratic Union.png - Wikipedia

Flag of the North Pole (Inspired by Arthur Christmas ( .org/wiki/Arthur_Christmas)) : r/vexillology

File:Flag of the Soviet Union (1924).svg - Wikipedia